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PDF DSC2311 Data sheet ( Hoja de datos )
| Número de pieza | DSC2311 | |
| Descripción | Configurable Two-Output Clock Generator | |
| Fabricantes | Microchip | |
| Logotipo |  |
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DSC2311
Crystal-less™ Configurable Two-Output Clock Generator
Features
• Two Simultaneous CMOS Outputs
- Output 1 Range: 2.3 MHz to 170 MHz
- Output 2 Range: 2.3 MHz to 170 MHz
• Low RMS Phase Jitter: <1 ps (typ.)
• High Stability: ±25 ppm, ±50 ppm
• Wide Temperature Range
- Automotive: –40°C to +125°C
- Ext. Industrial –40°C to +105°C
- Industrial –40°C to +85°C
- Ext. Commercial –20°C to +70°C
• High Supply Noise Rejection: –50 dBc
• High Shock and Vibration Immunity
- Qualified to MIL-STD-883
• High Reliability
- 20x higher MTBF than crystal-based clock
generator designs
• Supply Range of 2.25V to 3.6V
• Lead Free and RoHS-Compliant
Applications
• Consumer Electronics
• Camera and Imaging Modules
• Home Automation
• Industrial and Power Conversion
• Mobile Communications, Internet, and Sensor
Devices
• Solid State, Hard Drive, and Flash Drive Storage
General Description
The DSC2311 is a crystal-less™ clock generator that is
factory-configurable to simultaneously output two
separate frequencies from 2.3 MHz to 170 MHz. The
clock generator uses proven silicon MEMS technology
to provide low jitter and high frequency stability across
a wide range of supply voltages and temperatures. By
eliminating the external quartz crystal, crystal-less
clock generators significantly enhance reliability and
accelerate product development, while meeting
stringent clock performance criteria for a variety of
consumer electronics, communications, and storage
applications.
DSC2311 has an Output Enable/Disable feature that
allows it to disable the outputs when OE is low. The
device is available in a space-saving 6-pin 2.5 mm x
2.0 mm crystal-less VDFN package that uses only a
single external bypass capacitor. This requires a PCB
footprint equivalent to that of a 1.0 mm x 1.0 mm
crystal-based clock generator.
Block Diagram
Control Circuitry
MEMS
PLL
OE
Output
Control
and
Divider
FOUT1
FOUT2
2016 Microchip Technology Inc.
DS20005611A-page 1
1 page  
DSC2311
2.0 PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 2-1.
TABLE 2-1: PIN FUNCTION TABLE
Pin Number
Pin Name
Description
1
ENABLE
Output Enable for both CLK0 and CLK1.
2 N/C Do not connect.
3
GROUND
Ground.
4
CLK0
Clock Output 0 (CMOS).
5
CLK1
Clock Output 1 (CMOS).
6
VDD
Supply Voltage.
2016 Microchip Technology Inc.
DS20005611A-page 5
5 Page 
DSC2311
6-Lead Very Thin Dual Flatpack No-Leads (J7A) - 2.5x2.0 mm Body [VDFN]
Note: For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
X1
X2
12
Y
G2 C
6
E
G1 SILK SCREEN
RECOMMENDED LAND PATTERN
Units
Dimension Limits
Contact Pitch
E
Contact Pad Width (X4)
X1
Contact Pad Width (X2)
X2
Contact Pad Length (X6)
Y
Contact Pad Spacing
C
Space Between Contacts (X4)
G1
Space Between Contacts (X3)
G2
MIN
0.38
0.60
MILLIMETERS
NOM
0.825 BSC
1.45
MAX
0.65
0.25
0.85
Notes:
1. Dimensioning and tolerancing per ASME Y14.5M
BSC: Basic Dimension. Theoretically exact value shown without tolerances.
2. For best soldering results, thermal vias, if used, should be filled or tented to avoid solder loss during
reflow process
Microchip Technology Drawing C04-3005A
2016 Microchip Technology Inc.
DS20005611A-page 11
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet DSC2311.PDF ] | |
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